| Date | Acquired | Amount |
|---|---|---|
| Oct 05, 2017 |
|
Undisclosed amount |
| Aug 02, 2017 |
|
$ 90,000,000 |
| Jun 09, 2016 |
|
Undisclosed amount |
| Apr 10, 2015 |
|
Undisclosed amount |
| Feb 25, 2015 |
|
Undisclosed amount |
